High concentrations of aqueous solutions of sodium hydroxide and nickel(II)chloride are mixed together. Which statement is correct? A) Both NaCl and Ni(OH)₂ precipitate from solution. B) No precipitate forms. C) Ni(OH)₂ will precipitate from solution. D) NaCl will precipitate from solution. E) No reaction will occur.

Question

Quizplus · Accepted Answer

When sodium hydroxide and nickel(II) chloride are mixed together, a double displacement reaction occurs. The hydroxide ions from the sodium hydroxide react with the nickel(II) ions from the nickel(II) chloride to form insoluble nickel(II) hydroxide (Ni(OH)2) precipitate. The remaining sodium and chloride ions remain in solution. Therefore, option C is the correct answer.

High Concentrations of Aqueous Solutions of Sodium Hydroxide and Nickel(II)chloride